How do you fill out a PADI dive log?

How to log recreational dives in the PADI App:

  1. From the PADI App homepage, choose Log.
  2. Select “+” to create a new dive log.
  3. Enter the name of your dive site, and search.
  4. Choose the correct dive site from the list.
  5. Enter the details of your dive for your log.
  6. Click “Next” and that’s it – your log has been entered.

How do you calculate NDL?

Calculating NDL Time

  1. Press .
  2. Select Plan Dive > Compute NDL.
  3. Select an option: To calculate NDL based on your current tissue load, select Diving Now.
  4. Enter an oxygen percentage.
  5. Select an option: To calculate the NDL time, select Enter Depth, and enter the planned depth for your dive.
  6. Press DOWN.
  7. Select an option:

How do you calculate decompression time?

Accordingly, once the diver knows their planned depth and time, they can look up the most proximate ratio, calculate the difference in depths, and add or subtract the appropriate number of minutes from their total bottom time to give a total decompression time.

What should be in a dive log?

At their simplest, your entries should cover the basics of your dive – date, location, maximum depth, average depth, time in and time out, start and end tank pressures, and temperature.

What do you record on a dive log?

In a dive log, you can record information about a dive, such as the date and location, equipment used, maximum depth, air usage, average depth, bottom time, water temperature, current conditions and more. Even if you have a sharp memory, you probably won’t remember everything about a dive.

What is the no decompression limit NDL for a dive to 20 feet?

No Decompression Limits (NDL)

DepthPressureOxygen (%)
10 m/33 ft.2 bar/ata21%
20 m/66 ft.3 bar/ata21%
30 m/99 ft.4 bar/ata21%
40 m/132 ft.5 bar/ata21%

What is the 2 1 ratio for decompression tables?

The rule states that so long as a diver remains within the ratio of 2:1 for the pressure at depth versus ambient pressure on ascent, he is safe to ascend without developing a case of DCS–although it is important to note that due to complex human physiology, there is no definitive point between avoiding and getting DCS …